[GraphHopper] Understanding GraphHopper Instructions

[Peter]

> Actually I think I have now a much better understanding how gh
> InstructionList generation is working (and where it potentially
> should/could be tweaked) - I also understood, that right now you don't
> think, that this adjustment could make it into gh (might be simply
> cause I was not able yet to explain and motivate it sufficient enough).

Maybe, yes ;)

To make it clear: the instructions really need an enhancement but we'll
have to make sure this won't introduce cluttering the instruction list
(very important for long routes) as well as improving correctness and
avoiding overhead (e.g. regarding the name list you mentioned). So I
think we also need more tests for this and a more clear definition of
what we need and how better instructions can be determined.

And even if you only have only a workaround: feel free to post a link to
your repo here so that others know.

Regards,
Peter.